DocumentCode :
3379094
Title :
Research on interface modification and electrical tree of PE/MMT composites
Author :
Xiaohong Chi ; Junguo Gao ; Jiahui Guo ; Guowei Zheng ; Xiaohong Zhang
Author_Institution :
Key Lab. of Eng. Dielectr. & Its Applic., Harbin Univ. of Sci. & Technol., Harbin, China
fYear :
2013
fDate :
20-23 Oct. 2013
Firstpage :
527
Lastpage :
530
Abstract :
The phenomenon of electrical tree in polyethylene affects its service life and application in widely field. Our previous research works have showed that montmorillonite (MMT) introduced can improve electrical tree performance of polyethylene. In the present paper, organic processing methods by using intercalation agent and coupling agent are selected to modify spacing between laminar layers and surface characteristic of nano-montmorillonite. Polyethylene/nano-montmorillonite (PE/MMT) composites are prepared via melting intercalation method, the organic MMT content is 0.5%, 1%, 3%, and 5% in mass fraction respectively. It can be observed that infrared absorbance peaks of PE/MMT reduce by Fourier transform infrared spectrum (FTIR) due to hydrogen bonds formed between organic MMT and PE. The space charge characteristic and electrical tree properties of PE and PE/MMT are investigated. The test results reveal that the interfacial charge peak improved near cathode and internal space charge accumulation decreases obviously in PE/MMT composite. When content of organic montmorillonite is 0.5%, the PE/MMT composite has the minimum length and maximum density of electrical trees. Establish a model which can express the propagation of electrical tree in composite with layered inorganic filler simply, according to the testing results.
Keywords :
Fourier transform spectroscopy; composite insulating materials; hydrogen bonds; infrared spectroscopy; polyethylene insulation; space charge; trees (electrical); FTIR; Fourier transform infrared spectrum; PE/MMT composites; coupling agent; electrical tree properties; hydrogen bonds; infrared absorbance; intercalation agent; intercalation method; interface modification; interfacial charge peak; internal space charge accumulation; laminar layers; layered inorganic filler; near cathode; organic MMT content; organic montmorillonite; organic processing methods; polyethylene/nano-montmorillonite composites; space charge characteristic; surface characteristic; Couplings; Dispersion; Electrodes; Insulation; Polymers; Space charge;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical Insulation and Dielectric Phenomena (CEIDP), 2013 IEEE Conference on
Conference_Location :
Shenzhen
Type :
conf
DOI :
10.1109/CEIDP.2013.6747428
Filename :
6747428
Link To Document :
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